Steam oar heateb



EEGODY. STEAM GAE HEATER. No. 329,017. Patented Oct. 27, 1885.

(Nb Model.)

.El/mais vly Per marcan D. coDY, on nain, rnNNsYLvANiA, AssieNon orONE-HALF To JOHN w. Hors, on SAME PLAGE.

y l UNITED* ,STATES i y'PATENT Ori-uca STEA M CAR-H EATER.

E'EECIFICATIN forming part'. of Letters PatentrNo. 329,017, dated @amber27, 18H5.

Application filed August V1l, 1884.

To all whom t may concern:

Be it known that I, ELMORE D. GonY,.a citizen of the United States,residing at Erie,

` in the county of Erie and State of Pennsylvania, have invented certainnew and useful Improvements in Steam Gar-Heaters; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to the letters of reference marked thereon,forming part of this specilication.

My invention relates to improvements in mechanism for heating railwaypassenger-cars by means of steam or hot water, and improvements in`piping railway passenger-cars for such purpose.

The objects of my invention are, first, to

provide a supply-pipe for furnishing steam.

under the car, by means whereof a constantl` circulation of live steamis kept up through the steam-drums hereinbefore referred to, and alsothrough the coils along the side of the However, when hot vwater isused, the said return-bends, instead of communicating with the traps",asaforesaid, communicate with a return-pipe for conducting thepartiallyl cooled water back to thewheater; third, a systeni of pipingfor heating railway passengerears by means of steam or hot water,substantially as hereinbefore suggested, by means ywhereof steam or hotwater is delivered to heaters under the 'floor near the ends of the car,and also tothe central portions of coils along the sides of the car, andthe condensed steam or partially-cooled water taken therefrom at or nearthe centervof the car, whereby the coils along the side of the car areat all points kept at substantially the same Serial No. 140,272. (Nomodel.)

temperature and the heat substantially equalized throughout all portionsof the car.

Other features of my invention appear hereinafter in the specificationand claims.

I accomplish these objects and results in the manner and by themechanism illustrated in the accompanying drawings, in which# Figure lis a perspective view of a portion Vof a railway passenger-ear, showingmy improvements thereinand the coils and connections thereof on one sideof suchcar. Fig. 2 is an end view in section of a railway passenger-car,showing a cross-section of my device on the lines x m and y (in thedirection of the arrow e) in Fig. 1. tion of my device in a railwaypassenger-car, portions of the ear, the coils, and the pipes beingbroken away.

Like letters refer to like parts in all the figures. l f

In the construction of my device I first place under the floor of apassenger-car a supplypipe, A, extending from end to end of the car,having suitable couplings, A, upon the ends Fig. 3 is a side eleva 65thereof, and having cut-off valves a a placed at convenient points insaid supply-pipe.

`'Near each end of the ear,"in inclosed chambers under the door thereof,and communicating with the supply-pipe A, I place steam or hot-watercylinders B B, (or steam-pipe coils 8O in lieu thereof,) preferablydirectly over the supply-pipe A, said chambers communicating with theinside of the ear C by means of heatregisters D D and cold-air registersEE, placed in the door of the car. supply-pipe A, I place a cross, F,from which 'toward either side of the car extend pipes F F' to asufficient distance to reach the ends of the seats on either side of theaisle in the car,

Near the center of the from which upright pipes F2 F2, extending 90upward through the floor of the car under the seat G, (preferably one ofthe central seats of the can) next to the aisle, and upon the top of theupright pipes F F2, I place angle-valves f f, from which valves pipes F3F3 extend to 95 the upper courses of the coils H, extending along eitherside of the car for supplying steam or hot water to said coils.

lower courses of the coils II, and preferably under, the first seat I onthe other side of the roo From the center of the car, I placereturn-bends J J, which extend under the seat nearly to the aisle, wherethey connect by Ts projecting downward through the door of the car,where these Ts connect with pipes L L, Snc., (arranged in any convenientshape,) communicating with the steam-trap M, by means whereof the systemof steam-pipes hereinbefore referred to are constantly drained, therebyinsuring a continuous circulation oflive steam through all portions ofthe heating mechanism of the car. In the operation of this device thesteam drums B B drain directly into the supply-pipe A, where the livesteam forces the water of condensation through the system of pipes F F2F3 into the upper courses of the coils H, thence down through thereturn-,bends J J and the pipes L L', dtc., into-the steam-trap M, fromwhence it escapes, thereby insuring at all times a free and completecirculation of live steam through all portions of the heating apparatusof the car.

The valves or cocks a c in the supply-pipe A are used simply to cut offthe steam when the car in which the apparatus is used is the last one ona train. When in the center of a train, however, the cocks or valves a ain the supply-pipe A are left open, so as to permit the passage of steamfrom one car tor another. To prevent condensation in the supply-pipe A,by reason of its being exposed under the car, it may be boxed or coveredwith any 'of the non conducting materials commonly used in coveringsteam-pipes toprevent condensation. I In illustrating the inside oftheear C, but tw seat-frames are shown, G and I, the same being Inillustrating the coils H on the side of the. However, in

car but two pipes are shown. piping a car, any number of pipes maybeused that is desired. In making the connections' F F2 F3, and also theconnections L L', Ste.,

to the trap M, they may be varied in shape to suit the convenience ofthe mechanic, placing the same in the car as his judgment may dic tate,the peculiar shape of the connections shown not being essential to myinvention.

The steam-drums B B, hot-air registers D D, and cold-air registers E Eare placed near the ends of the car to equalize the heat throughout allportions of the car, cold air being drawn in at the registers E E andheated by the steam-drums B B and delivered back into the car throughthe hot-air registers D D near the ends of the car.

In case hot water is used for heating cars by my system of piping, areturn-pipe,N, (shown fication is only necessary, however, when hotwater is used to produce the heat instead of live steam.

I am aware that coils along the sides of cars and returnbends under theseats of cars are in common use for heating railway-cars by means of hotwater or steam. A device having pipes alongthe sides of the' car isshown'in the patent to Slingland, No. 284,250, dated September 4, 1883;butto operate the mechanism described' in that patent a steam-boilerunder the center of the car is necessary. In the patent to McDuffey. andJaques, No. 135,137 dated January 21, 1873, an inclcsed chamber in thefloor of the car supplied with hotwater or steam pipes is shown. Inneither of these devices is any means provided for adequatel y `heatingthe ends of the car, except the ends of the coils along the sides of thecar, shown in one ofthe patents referred to; neither does either deviceshow any means for adequately discharging the water of condensation,(except the steam-boiler shown in Patent No. 284,250.)

I am also aware that the 'patents of Graydon, No.v212,375, and ofFarwell, No. 82,210, show and describe certain means for discharging thewater of condensation from the pipes of car-heaters, in that of Graydonit being drained `into tanks at each end of the car, from which it canbe discharged from time to time by opening cocks connected withdischarge-pipes; but this device is not in any wise automatic in itsoperation, the tanks simply operating ascatch-basinsforthedrainagefromthe pipes. In that ofrFarwell, however, atrap is shown near each end of the car, two traps being necessary in theoperation of his device,which,however, is all located in chambers underthe Hoor ofthe car. These traps operate automatically to discharge aportion of the water reaching the trap, but not all of it, so that incold weather, when the car was disconnected from the train, it wouldcertainly freeze and lbecome useless.

IIO'

In none of the devices referred to are the same or as good resultsobtained as I do, in that I rst supply hot steam to self-draining drumsunder the oor at either end of the car; second, I supply hot steam tothe upper courses of coils in the car at or near its centerlongitudinally on both sides of the car, this steam traveling both waysto the ends of the car in pipes inclined downward toward the ends of thecar, and on its return it travels from the ends of the car in the lowercourses of the pipes, which incline downward to the center of the car,where :they connect with a common waste-pipe ending in an automaticdischarge-trap` under the central portion of the car. By this means thehottest part of the upper courses of the side coils is opposite thecoldest part of the lower courses of the side coils, by which means theaverage heat of the upper and lower courses of the side coils is uniformthroughout the entire length of the car, and to provide for extra heatnear the ends of fthe car the side coils are at these ISO niioor,communieating with the car by means of registers in the floor;and, again, by my arrangement of the heating mechanism I drain all partsof the heating apparatus into a common trap, which operatesautomatically to discharge all of the water of condensation, so that acar fitted with my heating device may be cut out of a train at any timein the coldest weather, and the pipes and traps will instantly emptythemselves of any and all water therein, so that no part of them willfreeze. Therefore I do not claim, broadly, the heating of cars bysystems of steam or hot-water pipes; but

What I do claim as new, and desire to secure by Letters Patent of theUnited States, is-

l. A system of piping for heating 'railway passengercars, consisting ofa supply-pipe extending longitudinally under the central portion of acar communicating with steam drums or coils inclosed in chambers underthe floor of such car, in combination with pipes extending from thecentral portion of said supply-pipe to the upper courses of coils ofpipe along the sides of such car, and escapepipes from the centralportion of the lower courses of said coils, communicating with anddraining into a steam-trap under the iioor of the car, substantially asand for the purpose set forth.

2. In a railway-car heater, side coils, H H, A

on either side of the car, substantially as shown, in combination withthe continuous steam-supply pipe A under the body of the car,intermediate connections near the center of the ear between the uppercourses of the side coils, H H, and the supply-pipe A, an automaticsteam-trap, M7 under the central portion of the car, and intermediateconnections between the lower courses of the side coils, H H, and thesteam-trap M, substantially as and for the purpose set forth.

3. The combinatiomin a railway-ear heater, of a steam-supply pipe, A,extending under the body of the car from end to end thereof, andcommunicating near each end of the car with stearn-drums B B in chambersunder the iioor of the car, and communicating near the center i ofthecar with the upper courses of both of the side coils, H H, with anautomatic steamtrap, M, communicating near the center ofthe car with thelower courses of both of the side coils, H H, substantially'as and forthe purpose set forth.

Intestimony whereof I aiiiX my signature in presence of two witnesses.

ELMORE D. CODY.

Witnesses:

H. M. STURGEON, F. A. SAWDEY.

1t is hereby certified that the name of the assignee in Lettere PatentNo. 329,017,

granted October 27, 1885, upon the application of .Elmore D. Cody, ofErie, Pennsylvania,

for an improvement in Steam Cnr Heaters, was erroneously written andprinted John W. H0ys; that Said name should have been written undprinted Ju/m PV.

Hays,- end that the said Letters Pzitent should be read with thiscorrection therein that the same may conform to the reeorxl 0f the easein the Patent Oee.

Signed, eountersi-gned, amil sealed this 3d dey of November, A. D. 1885.

[SEAL] H. L. MULDROW,

Acting Secretary of the Interior. Countersigned M. V. MONTGOMERY,

Commissioner of Patents.

